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6f56ad1b92
`nf_nat_redirect_ipv4` takes a `struct nf_nat_ipv4_multi_range_compat`, but converts it internally to a `struct nf_nat_range2`. Change the function to take the latter, factor out the code now shared with `nf_nat_redirect_ipv6`, move the conversion to the xt_REDIRECT module, and update the ipv4 range initialization in the nft_redir module. Replace a bare hex constant for 127.0.0.1 with a macro. Remove `WARN_ON`. `nf_nat_setup_info` calls `nf_ct_is_confirmed`: /* Can't setup nat info for confirmed ct. */ if (nf_ct_is_confirmed(ct)) return NF_ACCEPT; This means that `ct` cannot be null or the kernel will crash, and implies that `ctinfo` is `IP_CT_NEW` or `IP_CT_RELATED`. nft_redir has separate ipv4 and ipv6 call-backs which share much of their code, and an inet one switch containing a switch that calls one of the others based on the family of the packet. Merge the ipv4 and ipv6 ones into the inet one in order to get rid of the duplicate code. Const-qualify the `priv` pointer since we don't need to write through it. Assign `priv->flags` to the range instead of OR-ing it in. Set the `NF_NAT_RANGE_PROTO_SPECIFIED` flag once during init, rather than on every eval. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Florian Westphal <fw@strlen.de> |
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